Rev 4065 | Rev 5056 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 4065 | Rev 4103 | ||
|---|---|---|---|
| Line 265... | Line 265... | ||
| 265 | * This primitive may safely run concurrently with the _rcu list-mutation |
265 | * This primitive may safely run concurrently with the _rcu list-mutation |
| 266 | * primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock(). |
266 | * primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock(). |
| 267 | */ |
267 | */ |
| 268 | #define list_first_or_null_rcu(ptr, type, member) \ |
268 | #define list_first_or_null_rcu(ptr, type, member) \ |
| 269 | ({struct list_head *__ptr = (ptr); \ |
269 | ({struct list_head *__ptr = (ptr); \ |
| 270 | struct list_head __rcu *__next = list_next_rcu(__ptr); \ |
270 | struct list_head *__next = ACCESS_ONCE(__ptr->next); \ |
| - | 271 | likely(__ptr != __next) ? \ |
|
| 271 | likely(__ptr != __next) ? container_of(__next, type, member) : NULL; \ |
272 | list_entry_rcu(__next, type, member) : NULL; \ |
| 272 | }) |
273 | }) |
| Line 273... | Line 274... | ||
| 273 | 274 | ||
| 274 | /** |
275 | /** |
| 275 | * list_for_each_entry_rcu - iterate over rcu list of given type |
276 | * list_for_each_entry_rcu - iterate over rcu list of given type |